Rodney “Darkchild” Jerkins has worked with Beyoncé, Whitney Houston, Lady Gaga, Kanye West, Brandy, Justin Bieber and Britney Spears. Just to name a few. He co-wrote and produced Beyoncé’s chart-topping hit “Déjà Vu,” helped shape Brandy’s signature sound with “The Boy Is Mine,” and crafted the pulsing rhythm of Lady Gaga’s “Telephone.” His work on…